全球6000架空客A320飞机紧急停飞，国内该机型占半壁江山

Core Viewpoint - Airbus announced that approximately 6,000 A320 series aircraft require urgent replacement of flight control software affected by solar radiation, following an incident involving JetBlue Airways in late October [3][4]. Group 1: Incident and Response - The incident led to an analysis revealing that strong solar radiation could damage critical data needed for flight control, prompting Airbus to instruct all customers using the affected software to "immediately cease operations" [3]. - The FAA reported that 545 aircraft in the U.S. are affected, with airlines like Jetstar Airways, All Nippon Airways, and Avianca also announcing urgent maintenance for over 6,000 A320 aircraft globally, resulting in flight cancellations and delays [3][4]. Group 2: Software Update Details - The software replacement is primarily a downgrade to a previous version, requiring about 1-2 hours of work, with most aircraft able to resolve the issue through software downgrade, while a few older planes may need hardware changes [5]. - Vietnam Airlines has received a mandatory technical directive from Airbus and the Civil Aviation Authority of Vietnam (CAAV) to update its A320 and A321 aircraft, with updates expected to continue until November 29 [5]. Group 3: Impact on Global Fleet - There are approximately 11,300 A320 series aircraft in service globally, with the urgent software change affecting over half of the fleet, specifically 6,000 aircraft [5]. - In China, airlines operating Airbus aircraft are conducting urgent checks, leading to delays or cancellations for some flights due to specific software versions installed [5][6]. - The domestic A320 fleet consists of 2,015 aircraft, accounting for 48.3% of the total civil aviation fleet, distributed among 24 airlines [5].